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首页> 外文期刊>The Journal of Chemical Physics >Intermolecular vibrational energy exchange directly probed with ultrafasttwo dimensional infrared spectroscopy
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Intermolecular vibrational energy exchange directly probed with ultrafasttwo dimensional infrared spectroscopy

机译：用超快二维红外光谱直接探测分子间的振动能量交换

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摘要

Ultrafast two dimensional infrared (2D IR) spectroscopy has been applied to probe theintermolecular vibrational energy exchange between two model molecules, benzonitrile andacetonitrile-d3. The vibrational energy exchange between these two molecules is manifested throughthe growth of cross peaks in their 2D IR spectra. In experiments, their nitrile groups (CN) are notinvolved in the energy exchange but serve as reporters of the process. Our experiments demonstratethat intermolecular vibrational energy transfer can be directly probed with the 2D IR method.Results also show that the mode specific energy transfer can be important in intermolecularvibrational energy transfers.
机译：超快二维红外（2D IR）光谱已被用于探测两个模型分子，苯甲腈和乙腈-d3之间的分子间振动能量交换。这两个分子之间的振动能量交换通过其二维红外光谱中交叉峰的增长得以体现。在实验中，它们的腈基（CN）不参与能量交换，但充当该过程的报告者。我们的实验证明了分子间振动能量的传递可以用二维红外方法直接探测。结果还表明，模式特定的能量传递在分子间的振动能量传递中很重要。

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